He is good at maths and it won’t be long ____ he works out the problem.
A.since | B.until | C.before | D.when |
__________ I could say a word, she had stormed out of the room.
A.Before | B.When | C.After | D.Until |
________ I admit that there are problems, I don’t agree that they can’t be solved.
A.When | B.As | C.While | D.But |
The men will have to wait all day _____ the doctor works faster..
A.if | B.unless | C.whether | D.that |
It was quite a few years __________the accused was declared innocent and set free.
A.since | B.that | C.when | D.before |
_________ Yang Guang is blind, he has made his great dream come true by his hard work.
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___________ our manage objects to Tom's joining the club, we shall accept him as a member.
A.Until | B.Unless | C.If | D.After |
Wind power is an ancient source of energy ___________ we may return in the near future.
A.on which | B.by which | C.to which | D.from which |